1. Duke University Medical Center, Durham, North Carolina, USA
2. Ochsner Clinic, New Orleans, Louisiana, USA
3. SUNY Downstate Medical Center, Brooklyn, New York, USA
4. Johns Hopkins Medicine, Baltimore, Maryland, USA
5. Rush University Medical Center, Chicago, Illinois, USA
6. ENT & Allergy Associates, LLP, New York, New York, USA
7. Adventist Health, Ukiah, California, USA
8. University of Miami, Miami, Florida, USA
9. Mayo Clinic, Phoenix, Arizona, USA
10. UCLA Department of Head & Neck Surgery, Los Angeles, California, USA
11. Weill Cornell Medical College New York, New York, USA
12. Cleveland Clinic, Cleveland, Ohio, USA
13. Ear Medical Group, San Antonio, Texas, USA
14. University of Mississippi Medical Center, Jackson, Mississippi, USA
15. Children’s Hospital Boston, Boston, Massachusetts, USA
16. American Academy of Otolaryngology–Head and Neck Surgery Foundation, Alexandria, Virginia, USA